Located in the Dehradun district, the Asan Conservation Reserve is the 38th Ramsar site in India and first in the state of Uttarakhand. It is a human-made wetland, which has resulted due to the Asan Barrage being put in place in 1967. The barrage, fed by the Asan River and several minor discharge channels of Yamuna, supports myriad endangered species of birds including two waterbird species—red-crested pochard and ruddy shelduck. It also supports non-avian species, including 49 fish species. Wit......